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AIX Version 4.3 System Management Guide: Operating System and Devices

Booting a System That Crashed

In some instances, you may have to boot a system that has stopped (crashed) without being properly shut down. This procedure covers the basics of how to boot if your system was unable to recover from the crash.


  1. Your system crashed and was not properly shut down due to unusual conditions.
  2. Your system is turned off.


  1. Ensure that all hardware and peripheral devices are properly connected.
  2. Turn on all of the peripheral devices.
  3. Watch the screen for information about automatic hardware diagnostics.
  4. Check the position of the key in the key mode switch on your system unit.
  5. Turn the system unit on.

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